you know, she's sold 400 katrillion books of the "harry potter" series. coming out with a new book now, printed 2 million copies. a lot of debate over why is she doing this? once you've made a billion dollars, why do you keep going? i just want to cite another statistic, another study. the study showed people worth 15 million or more, 60% of them wanted to keep working even after they had made their target number. so people -- >> because they don't want to be bored or they want to feel relevant still, contributing? >> because it's what drives them. >> it's how they got there probably. unless their last name is walton. you know what i mean? >> exactly. when you look at the wealthy a lot of them think once i get this number i'll be done, i'll stop working. they get there and they realize what's driven them all their life is creating jobs, starting companies, disrupting the economy, creating something new of value, and they don't stop. and the same thing is true for writers. and i think good for her for keeping writing despite her success. >> and of course s